[Py38] Fix import issue

[DrownFish19]

Before submitting

• Lint code. If there are lint issues, please format the code first.

# Install and register `pre-commit` in the project folder
pip install pre-commit && pre-commit install

# Process previous code files separately
pre-commit run --file XXXX.py

• Add test cases into tests folder. If there are codecov issues, please add tests cases first.

PR types

Others

PR changes

Others

Description

Fix import issue for py38.

[paddle-bot]

Thanks for your contribution!

[ZHUI]

LGTM

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 49.01%. Comparing base (7d6417b) to head (f502412).
Report is 185 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop   #10410   +/-   ##
========================================
  Coverage    49.01%   49.01%           
========================================
  Files          765      765           
  Lines       125879   125881    +2     
========================================
+ Hits         61701    61702    +1     
- Misses       64178    64179    +1     

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